University of the Philippines Diliman. National Institute for Science and Mathematics Education Development. Regional Science Teaching Center Research Team. (2002). In-service teacher training programs and development of science and mathematics concepts, skills and values: Consolidated report. UP CIDS and UP NISMED.
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Cita MLA (9th ed.)University of the Philippines Diliman. National Institute for Science and Mathematics Education Development. Regional Science Teaching Center Research Team. In-service Teacher Training Programs and Development of Science and Mathematics Concepts, Skills and Values: Consolidated Report. UP CIDS and UP NISMED, 2002.